Individual-protector unit and means for mounting same.



F. B. 00015; INDIVIDUAL PROTECTOR UNIT AND MEANS FOR MOUNTING SAME.

' APPLICATION FILED AUG. 2, 1909. 99,229. Patented Apr. 25, 1911.

3 SHBETSSHEET 1.

P. B. 000K.

INDIVIDUAL PROTECTOR UNIT AND MEANS FOR MOUNTING SAME. APPLICATION FILED AUG. 2, 1909.

990,229. Patented Apr, 25, 1911.

3 SHEETS-SHEET 2 'IIIlIIIIII/IJL 1 27/11/1111)) k ill/111111.

W/TMESSES. lWYE/VTOR.

WNW 0Q m FRANK B. coo/1.,

Y/SLMW 0 K @MAV- 8y V F. B. COOK.

INDIVIDUAL PROTECTOR UNIT AND MEANS FOR MOUDITING SAME. APPLIGATIOIN FILED AUG. 2, 1909.

999 229 I v Patented Apr. 25, 1911.

3 SHEETBSHEBT 3.

WITNESSES. l/VVEIVTORI mm @a/Q/Q PEA/YA 5. C00/(,

; citizen of the United States of America, re-

siding at Chicago, in the county of Cook and State of Illinois, have invented a new and To all whom it may concern:

"accompanyin electrical conductors, and more in particuscribed; to provide improved means for :to a suitable base or support; to. provide ing the preferred forms of my invention, Figure 1 is an elevation of a sheet metal side portion of a cable terminal, showing mounting the several spring members of the 'mounting the protector unit as a whole to UNITED STATES PATENT OFFICE.

FRANK B. COOK, OF CHICAGO, ILLINOIS.

INDIVIDUAL-PROTECTOR. UNIT AND MEANS ron. mammasazmrn.

Be it known that I, FRANI; B. CooK, a

useful Individual-Protector Unit and Means for Mounting Same,'of which the following is a specification, reference being had to the drawings," illustrating same. My invention relates toprotectors for lar to individual protectors adapted to be mounted-on strips or cable terminals.

' The principal objects of my invention are to provide an improvedindividual protector unit as willbe hereinafter more fully'demounting such an individual protector unitimproved means for securely mounting the spring members of such a protector unit in place and insulating them from each other and from their mounting; and to provide simplicity of construction and-cheapnessof manufacture in such apparatus. I Other objects will be apparent from the following specification. In the'accompanying drawings. illustrat several of one form of my improved individual. protector units mounted thereon, and room to accommodate more of the said pro-. tector units, some of the parts being removed to show more clearly the details of construction; Fig. 2 is a plan view of the tion of such apparatus; Fig. 3 is a view of a portion of the apparatus shown in Figs. 2 and 3, showing in" detail one method of protector unit in place, and the method of its mounting plate; Fig. 5 is an elevation of one of the spring members used in'the protector unit shown in Fig. 2, showing the detail of construction thereof;'Fig. 6 is a view of another modified form of individual protector unit, taken the same as Fig. 2; Fig.

7 is a top view'of'Fig. 6, with portions re Specification of LettersPatent. Patntd' Apr. '25, 1911- Application filed August 2, i I v i It i I 1909. Serial no. 510,870.

moved to more clearly show the-details. of

'construction of the apparatus; and Fig. 8

In the drawings 1 is a sheet ing' plate for the individual protector units, preferably formed as shownfsoas .to be used as one side of a cable terminal in a manner well understood. Of course it is to be understood that various plates or strips .may be. used for holding the individual protectorunits. The plate 1 carries a series of.hol-j low binding posts 2 2 preferably constructed as shown in Fig. 4 and insulated from the plate 1 by suitable insulating portions 3 and 4. The plate 1 also has formed therein a seriesof hooks 5 5 adapted to hold the rear ends of the individual protector units. in place as will be hereinafter more fully de scribed. The plate 1 is also provided witha series of holes 6 6 therethrough for accommodating conductors leading t'rom the rear spring members-of the individual protector units. 7

Each of the individual protector units shown in Figs. 1 and 2, comprises a sheet metal base portion 7 carrying-a pair of front spring members 8 8%, a pair of rearspring members'9 9, a pair of inclosed fuses 10,10. suitably held in place by the spring .mem-v bers 8 9 and S 9 as shown, and a-pa-ir of lightning arresters 11 11 suitably mounted between front spring members 8 8 and. the front edge of the plate 7. The plate 7, is preferably provided with a pair of tongue portions 12 12 formed; therein, and. the spring members 8 8 are preferably pro vided with depressions 13 13 therein,- all for" suitably holding the lightning arresters 11- on same, then heating the-rubber tube 14:;

until it issoftened so thatitinay be readily compressed without breaking,=then placing the lower end of the tubexlfi through-a holeal I If it is desired in the plate whole so as tc b i too as shown in Fig. .nd riveting the e1 the tube 16 over asshown, so that the par are securely held in the position shown in Fig. 4 and are securely moui'ited on the base plate 7 Each of the spring n'ienib is notched as shown at l? in 5. to prevent them from turning on the rubber portion 14-. 1

unit is pressed down toward the plate 1 until the inner ends 035: the spring members 8 8 firmly clamp the corresponding of binding posts 2- Q as shown, whereby the protector unit is firmly mounted in place. to remove the protector unit, it is only necessary to pry the forward end of the unit from the plate 1 until the sorings 8 8" are compelled to release their hold on. the binding posts 2 2, whereupon the rear-- ward end of the protector unit may be readily released from the correspondinghook 5 and the protector it will be readily seen that the spring menu bars 8 8 make with the respective binding posts? 2 of the air.

Each of the base portions 7 7 of the pro tector units is provided Witha hole 20 t1) me through concentric with one of the holes 6 6 of the plate 1 when the protector unitmounted on the plate 1, to accommodate electrical conductors leading from the inner ends of the spring 9 9 through the plates.

7 and 1. The conductors leading to the binding posts 2 2, as from the interior of a cable terminal, are extended out through the posts 2 2 and secured to the outer ends of same by solder which tightly seals the openings in the posts 2 2.

If it is desired to mount the protector units of Figs. 1, 2 and-3 on a board or other suitable mounting, by means of bolts or ,screws, this can be done by simply placing the bolts or screws through the hollow metal tubes or rivets 16 16.

Each plate 7 is preferably formed with longitudinal side ribs 21 21 to give stiffness to the base. portion of the protector unit.

In the individual protector unit. shown in Fig. 3, the lightning arresters 11 11 are placed at the rear end of the unit in an upwardly-extending direction, instead of at the front. end oft-he unit as shown'in Fi s.

When the individual pm unit removed. Of coi'iirsc' good electrical connections,

the lightning arresters ,sbly heir gainst the bent nor tio of the p te 7 by spring members 23 which are s cably secured to the spr members 5) 9' shown ..,.erably H soldered to these spring members 9 9*".

shown in Fig. l

the construction of vitles a mounting w 1 Y is very durable,

The individual ore.

tor unit shows 5- l igs. 6, 7 and 8, has the general & P@Elfz'1' of the protector shown in Figs. 1 and the principal difference between these two giro: tectors being in the arrangement for, and method of, mounting the spring members :0 the base plate of the protector. in Figs. 6; '7 and S, a. hollow hard-rubb ,1 block 24; provided for mounting the "front pair of springs 8 and 8 to the base plate '5. The block 24 is provided with an ainiular groove therezmound in which portions of the sprnigs 8 and 8 are placed as shown, on sides of the block 24. Each of the sp: ng members 8' and 8 is cut away as shown in Fig. 7, so as to provide a plurality of slots and teeth thereon, the teeth 'fitti into the annular groove in. the block 24; at erably as shown. Nowto firmly clamp the spring members 8 and B in place and mount them to the base plate 7", the rubber block is heated and is then compressed so as to tightly press it against both sides of the springs 8 and 8 and force the material of the rubber" in between the teeth 25 25 so to completely'fill the openings between these teeth, the lower end 26 of the block 24- being at the same time formed over against the base plate 7' as shown in Fig. 8 and thereby securely mounting the springs 4 and 8 and the block 24' to the base plate 7. It will readily be seen t-hatgthis construction mounts the springs 8 and 8" very r' .lly to the rubber block 2 preventing the springs 8 and S" from being turned on the block 24 and from being pulled laterally therefrom. It will also be seen that this mounting is accomplished by a single member 24-. which firmly holds the parts togcther and suitably insulates the conductive port-ions from each other. The rubber block 24 is provided with a. hole 27 therethrough for accommodating electrical conductors leading through the base plate 7*, if desired, the block 24 thoroughly insulating the said conductors from other conductive portions.

The mou ing shown at the rear of the individual protector of Figs. 6, 7 and this u actically like the mounting lastdescribed above, except that in this case there provided a hollow rnetallic member 16 extending through the hard-rubber block 24,- and a washer28 on top of the block-24 opposite the 'hollow'metallic member 16 being riveted" .over to the base plate 7*- as shown, so as When the individual protector shown in Figs. 6, 7 and 8 is mounted to a base portion 1 as shown in Fig. 6, the inner end 26 of the rubber block 24: extends through a suitable hole'in the basev terminal installed, theindividual protec-' tor units may be added to the cable termi-.

nal as it isgdesired'to utthe various ,pair's *offconduetors of'the ca le inse'rvice; With this arrangement the first cost of-a cable terminal, especially. a. cable terminalof the 'inclosed-head type, is greatly reduced, it

not being necessary to provide an of the protectors or the spring members or'holding the protectors in place,.until' it .is .desired to actually use such protectors and spring members onlineswhmh are put in 40 service. The advantages of such an arrangement can be readily seen.)

I do not wish to limit this invention to all of the particular" details herein set forth, as various modifications of same may-be made without departing from the scope of th appended clanns.

What I-claim as my invention is:

1. In apparatus ofthe character described,

a sheet metal mounting-plate having a series ably insulated therefrom, and a series of individual protector units each having 'a notched base plate adapted to engage the corresponding said hooks, eaeh protector unit having a pair of bifurcated spring members a apte when the protector units are suitably posi- .60

place.

' 2' comprising a sheet metal mounting base havthereon,a pair of-binding posts ortion 1 as shown, so as to suitably insu ate any elec' trical conductors that ma be-vextended.

of hooks thereo'n,; a series of hollow binding posts carried by the plate and suitto engage and clamp the corresponding pair offsaid' binding posts.

tioned, whereby the proteetor'units are re movably and substantially mounted in.

In apparams of the awe-er e b --carried by the said base and insulatedtherefrom, and an individual protector unit having a base portion to be engaged-by the said hook and a pair of bifurcated spri members adapted to engage andfclamp, theIJO said binding posts when the protector. .unit.- is suitably positioned, whereby the latter is relamovably and substantially mounted in age, I. p 3. In apparatus of the character described, a mounting base having a projecting hook: thereon and binding posts carried thereby,- and an individual v protector unit having abase portion to be engaged by the said hook .engage and clamp the said posts when the J protector unit is suitably positioned, whereby the latteris removably and substantially mounted in place. V 4:. The combination of a mounting base 1 having a plurality of posts carried thereby-, a protector unit having a base and a pluralit of bifurcated spring members 'mo'unte thereon, and means whereby the said bases have removable engaging relation with each other near one end of the protector unit, the said spring members being adapted to engage and clamp the said posts when the protector unit is suitablypositionedywher y the latter is removably and securely clamped inlace. T 5. The combination 0 a mounting base having a post projecting-therefrom, and a protector unit having spring fingers adapted to engage-'and-clamp the-said post when the rotector unit-is suitably positioned, whereythe latter is removably mounted in place. 6. A mounting of the character described comprisingra suitable base, a hollow metallic tube extending through the said base, a hard-rubber portion and a washer threaded onto the said metallic tube, and spring members' h'aving projecting teeth thereon in engaging relation with the said rubber portion, the ends of the saidtmetallic tube being riveted over against the said base and washer whereby the said rubber portion. is compressed along the said metallic tube and gforced'in between'the said teeth, and also pressed tightly against the said spring mem- .bers on opposite sides thereof, whereby the latter are securely mounted on-the said base' and insulated therefrom and from each other, substantially as described.

7. mounting of the character describedcomprising a base, a metallic tubeextending through the base, a sleeveof insulating material placed over the metallic j tube, and spring members having notched portions thereoninengagirig relation withthe said 125. sleeve of-linsulating material, the-said me- 1 tallictube being-riveted over whereby thesleeve of insulating material is compressed .againstfthe said spring members and around the said 'notched portions, whereby: the said andbifurcated'spring members adapted to 80- D spring members are suitably mounted on the said-base and insulated therefrom and from each othen 8.1%. mounting of a character described rng b tie-nhaving a meming material placed overthe said member, and a terminal. member engaging the said sleeve of insulating material medially'therealong, the said sleeve of insulating material "being compressed longitudinally and there- ,by caused to: firmly engage'the said "terminal member on opposite sidesthereof, whereby the'latter. is mounted on the said base portion' and insulated therefrom. -9. A mountingof the character described comprising a base portion, a bloclr'of insulating material having an annular recess therein-,and one or more terminal members having notched port-ions placed vyithin the said annular recess, the said block of insulating material being compressed whereby the said recess is reduced and the material of the said bloclr'is formed tightly around'the said notched. port-ions for securely mounting the said terminal member or members to the said block the said block extending through and being formedover against the said base portion, 'iv' hereby it is "securely mounted thereto.-;: r

mounting' o'fjth e character described "comprising a base portion, a sleeve of insulilting material inserted through the said base-portion and having an annular recess therein, and one or more terminal members A havi tched portions thereon fitting in t e said recess, the said sleeve of insulating material being compressed longitudinally whereby the materialthereof is formed tightly around the said notched portions to securely-mount the said terminal member or members to the said sleeve, and whereby the latteris riveted over against the said base .portion to securely mount it thereto-,"the said sleeve serving to accommodate electrical conizductors leadmg through the said base por -1on.--' 11. n. mounting of the character described comprising abase portion, a block of insulatmg material having an annular recess therein, one or more terminal members having notched portions'thereon placed within the said annular recess, and means for securely mounting tllPJ-Sflld blOCk of insulating maiterial to the said base portion, the said block of insulating material being compressed vvherebythe material thereof is forced tightly around the said notched portions to securely mount thesaid terminal-member or members-to thesaid block.

12. A mounting of the character described comprising a base portion, a sleeve of insulating material suitablymounted'to the said base portion, and aterminal member or members mountedonthe said sleeve of in'su ee eac lating material, the latter being, compressed longitudi hall y \vhereby the material thereof fbrccd tightly against the said terminal member or members on opposite sides thereof to SQCll rely ll'lOllIll) lllel'll Ol'l sleeve. bBli-Ktlldlli.""tilt-BI Oil]. il'SlQQVB UflllSlllllllb 1.3 A mounting of. the character described comprising a base portion, an nsulating member carried by the base portion, and a terminal member or members associated with the said insulating member, the latter being compressed and thereby. deformed whereby the in'aterial thereof is forced out:

tightly against the said terminal member or members on opposite sides thereof'to se,

curelyhold them in place. 14:.- Amounting of the character-described comprising a base portion, a hollow insulating member carriedby the base portion, and

a terminal member or members associated with the said insulating member, the latter being compressed and thereby deformed whereby the material thereof is forced out tightly against the said terminal memberor members on opposite sides thereof 'to securely hold them in place.

15. An insulating member, and a terminal member or members associated with the said insulating member, the latter being .com-

pressed whereby .the material thereof is forced outwardly against the said terminal member ormembers to securely hold them in place.

16. A hollow insulating member, and a terminal member or members associated with the said'hollow insulating member,.the latter being compressed whereby the material thcreof is forced outwardly against the said terminal member ormembersto securely hold them in place.

17. A mounting of the character described, comprising a post, and spring fingers adapted to engage and clamp the said post when properly positioned, substantially as described.

18 The combination with a mounting base carrying a terminal member for an electrical conductor, of a separate lndlvldualvice and a terminal therefor, the latter said protector unit comprising a protectiye, de-

nal member on the said base and thereby hold the said protector unit to the said base.

19. The combination with a cable terminal head carrying a terminal member for an electrical conductor, of a conductor attached to the said terminal member, and'a separate individual protector unit. comprising a protective device and agterminal'therefor, the latter said terminal being adapted. to-engage the terminal member onthe'cable terminal head and thereby hold the said protector unit to the said head.

20.' An insulating membenandaterminal member or members associatedjvith thesaid; insulating member. the. latter: being com pressed and thereby deformed whereby the material thereofis forced tightly against opp'osite sides of the said terminal member or members to securely hold them in place.

21. A hollow insulating member, and a terminal member or members associated with the said hollow insulating member, the latter being compressed and thereby deformed whereby the material thereof is forced tightly against opposite sides of the said terminal member or members to securely hold them in place.

22. An insulating member, and a terminal member or members associated with the said insulating member and having one or more recesses or openings therein, the said insulating member being compressed whereby the -material thereof is forced into the said recesses or openings to hold the said terminal member or members in place.

'23. A hollow insulating member, and a terminal member 'or members associated with the said hollow insulating member and having one or more recesses or openings therein, the said insulating member being compressed whereby the material thereof is forced into the said recesses or openings to hold the said terminatmember or members in place.

25. A hollow insulating member, and a terminal member or members placed in close proximity to the said insulating member, the latter then being deformed so that the material thereof grasps the said terminal member or members to securely mount them to the said hollow insulating member.

26. The combination with a mounting base carrying apair of terminal members for electrical conductors, of a separateindi- Yidual protector unit comprising a pair of protective devices and terminals the'refor, the latter said terminals being adapted to engage the terminal members on the mounting base and thereby hold the said protector unit to the said base.

27. The combination with acable terminal head carrying a pair of terminal members for electrical conductors, of a pair of conductors attached to the respective said terminal members, and a separate individual protector unit; comprising a pair of protective devices and terminals therefor, the latter said terminals being adapted to engage the terminal members on the cable terminal head and thereby hold the said protector unit to the said head.

28. In apparatus of the character described, a mounting base having a hook thereon and a terminal post carried thereby, and a protector unit having a base portion to be engaged with the said hook and spring fingers adapted to engage and clamp the said post when the protector unit is properly positioned, whereby the latter is removably and substantially mounted in place.

As inventor of the foregoing I hereunto subscribe my name, this 27th day of July, 1909.

FRANK B. COOK. 

